[Campbell Biology P.718] Based on Figure 31.25 and the accompanying text, which of the follo... | Practice Question

Based on Figure 31.25 and the accompanying text, which of the following statements about the anatomy and function of a lichen is correct?

  • A: The fungal hyphae primarily perform photosynthesis, while the algal cells provide structural support.
  • B: Soredia are specialized structures involved in the production of toxic compounds.
  • C: The physical arrangement of fungal hyphae facilitates gas exchange and water retention for the photosynthetic partner.
  • D: Lichens are exclusively found in aquatic environments due to their need for constant moisture.

Explanation

The text states: 'The physical arrangement of hyphae allows for gas exchange, protects the photosynthetic partner, and retains water and minerals.' This directly supports option C, describing how the fungal hyphae contribute to the lichen's survival.